<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Pdf
 * @subpackage Destination
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Destination.php 16978 2009-07-22 19:59:40Z alexander $
 */


/** Internally used classes */
require_once 'Zend/Pdf/Element.php';


/** Zend_Pdf_Destination */
require_once 'Zend/Pdf/Destination.php';

/**
 * Abstract PDF explicit destination representation class
 *
 * @package    Zend_Pdf
 * @subpackage Destination
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_Pdf_Destination_Explicit extends Zend_Pdf_Destination
{
	/**
	 * Destination description array
	 *
	 * @var Zend_Pdf_Element_Array
	 */
	protected $_destinationArray;

	/**
	 * True if it's a remote destination
	 *
	 * @var boolean
	 */
	protected $_isRemote;

	/**
	 * Explicit destination object constructor
	 *
	 * @param Zend_Pdf_Element $destinationArray
	 * @throws Zend_Pdf_Exception
	 */
	public function __construct(Zend_Pdf_Element $destinationArray)
	{
		if ($destinationArray->getType() != Zend_Pdf_Element::TYPE_ARRAY) {
			require_once 'Zend/Pdf/Exception.php';
			throw new Zend_Pdf_Exception('Explicit destination resource Array must be a direct or an indirect array object.');
		}

		$this->_destinationArray = $destinationArray;

		switch (count($this->_destinationArray->items)) {
			case 0:
				require_once 'Zend/Pdf/Exception.php';
				throw new Zend_Pdf_Exception('Destination array must contain a page reference.');
				break;

			case 1:
				require_once 'Zend/Pdf/Exception.php';
				throw new Zend_Pdf_Exception('Destination array must contain a destination type name.');
				break;

			default:
				// Do nothing
				break;
		}

		switch ($this->_destinationArray->items[0]->getType()) {
			case Zend_Pdf_Element::TYPE_NUMERIC:
				$this->_isRemote = true;
				break;

			case Zend_Pdf_Element::TYPE_DICTIONARY:
				$this->_isRemote = false;
				break;

			default:
				require_once 'Zend/Pdf/Exception.php';
				throw new Zend_Pdf_Exception('Destination target must be a page number or page dictionary object.');
				break;
		}
	}

	/**
	 * Returns true if it's a remote destination
	 *
	 * @return boolean
	 */
	public function isRemote()
	{
		return $this->_isRemote;
	}

	/**
	 * Get resource
	 *
	 * @internal
	 * @return Zend_Pdf_Element
	 */
	public function getResource()
	{
		return $this->_destinationArray;
	}
}
